/*
* drivers/input/touchscreen/gslX680.c
*
* Copyright (c) 2012 Shanghai Basewin
* Guan Yuwei<guanyuwei@basewin.com>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
#include <linux/module.h>
#include <linux/delay.h>
#include <linux/device.h>
#include <linux/hrtimer.h>
#include <linux/i2c.h>
#include <linux/input.h>
#include <linux/interrupt.h>
#include <linux/io.h>
#include <linux/platform_device.h>
#include <linux/async.h>
#include <linux/irq.h>
#include <linux/workqueue.h>
#include <linux/proc_fs.h>
#include <linux/input/mt.h>
#include <linux/version.h>
#include <linux/slab.h>
#include <linux/of_device.h>
#include <linux/of_gpio.h>
#include "tp_suspend.h"
#include "tp_gslx680_board.h"
#ifdef OLD_VERSION
#if defined(CONFIG_TOUCHSCREEN_GSL1680_7INCH_800x480_LEHENG_NEW)
#include "rockchip_gsl1680_7inch_800x480_LeHeng.h"
#elif defined(CONFIG_TOUCHSCREEN_GSL1680_7INCH_800x480_SHENGHEXIANG_NEW)
#include "rockchip_gsl1680_7inch_800x480_ShengHeXiang.h"
#elif defined(CONFIG_TOUCHSCREEN_GSL1680_7INCH_800x480_SHENGHEXIANG_QLT_NEW)
#include "rockchip_gsl1680_7inch_800x480_ShengHeXiang_QLT.h"
#elif defined(CONFIG_TOUCHSCREEN_GSL1680_7INCH_1024x600_SHENGHEXIANG_NEW)
#include "rockchip_gsl1680_7inch_1024x600_ShengHeXiang.h"
#elif defined(CONFIG_TOUCHSCREEN_GSL1680_7INCH_800x480_YOUCHU_NEW)
#include "rockchip_gsl1680_7inch_800x480_YouChu_dc.h"
#elif defined(CONFIG_TOUCHSCREEN_GSL1680_7INCH_800x480_GANGXINDA_NEW)
#include "rockchip_gsl1680_7inch_800x480_YouChu_NEW_GangXinDa.h"
#elif defined(CONFIG_TOUCHSCREEN_GSL1680_7INCH_1024x600_GANGXINDA_NEW)
#include "rockchip_gsl1680_7inch_1024x600_YouChu_NEW_GangXinDa.h"
#elif defined(CONFIG_TOUCHSCREEN_GSL1680_7INCH_800x480_DEYI_NEW)
#include "rockchip_gsl1680_7inch_800x480_DeYi.h"
#elif defined(CONFIG_TOUCHSCREEN_GSL1680_7INCH_800x480_YOUCHU_YISENG_NEW)
#include "rockchip_gsl1680_7inch_800x480_YouChu_YiSeng.h"
#elif defined(CONFIG_TOUCHSCREEN_GSL1680_7INCH_800x480_HAOYUAN_NEW)
#include "rockchip_gsl1680_7inch_800x480_HaoYuan_NEW.h"
#elif defined(CONFIG_TOUCHSCREEN_GSL1680_7INCH_800x480_XINAGRUIDE_NEW)
#include "rockchip_gsl1680_7inch_800x480_XiangRuiDe_NEW.h"
#elif defined(CONFIG_TOUCHSCREEN_GSL1680_7INCH_1024x600_YOUCHU_NEW)
#include "rockchip_gsl1680_7inch_1024x600_YouChu.h"
#elif defined(CONFIG_TOUCHSCREEN_GSL1680_7INCH_1024x600_HAOYUAN_NEW)
#include "rockchip_gsl1680_7inch_1024x600_HaoYuan.h"
#elif defined(CONFIG_TOUCHSCREEN_GSL1680_7INCH_1024x600_DEYI_NEW)
#include "rockchip_gsl1680_7inch_1024x600_DeYi_NEW.h"
#elif defined(CONFIG_TOUCHSCREEN_GSL1680_7INCH_1024x600_FEICHU_NEW)
#include "rockchip_gsl1680_7inch_1024x600_FeiChu_NEW.h"
#elif defined(CONFIG_TOUCHSCREEN_GSL1680_7INCH_1024x600_K71_NEW)
#include "rockchip_gsl1680_7inch_1024x600_K71_NEW.h"
#elif defined(CONFIG_GSLX680_9INCH_800X480_NEW)
#include "rockchip_gslX680_9inch_800x480.h"
#elif defined(CONFIG_GSLX680_9INCH_800X480_TENGYAO_NEW)
#include "rockchip_gslX680_9inch_800x480_TengYao.h"
#elif defined(CONFIG_GSLX680_9INCH_1024X600_NEW)
#include "rockchip_gslX680_9inch_1024x600.h"
#elif defined(CONFIG_GSLX680_8INCH_800X600_NEW)
#include "rockchip_gslX680_8inch_800x600.h"
#elif defined(CONFIG_GSLX680_8INCH_1024X600_NEW)
#include "rockchip_gslX680_8inch_1024x600.h"
#elif defined(CONFIG_TOUCHSCREEN_GSL1680_43INCH_480x272_HAOYUAN)
#include "rockchip_gsl1680_43inch_480x272_YouChu.h"
#else
#include "rockchip_gslX680.h"
#endif
#else
#endif
#define REPORT_DATA_ANDROID_4_0
#define SLEEP_CLEAR_POINT
#ifdef FILTER_POINT
#define FILTER_MAX 9
#endif
#define GSLX680_I2C_NAME "gslX680a"
#define GSLX680_I2C_ADDR 0x40
#ifdef OLD_VERSION
#ifdef CONFIG_MACH_RK3028A_86V
#define IRQ_PORT RK30_PIN3_PC7
#if defined(CONFIG_INCAR_PNLVCOM_ADJUST)
#define WAKE_PORT RK30_PIN3_PC3
#else
#define WAKE_PORT RK30_PIN3_PC3
#endif
#else
#if defined(CONFIG_MACH_RK3026_AT8931_NMC1000) || defined(CONFIG_MACH_RK3026_PMU_ACT9831)
#define IRQ_PORT RK30_PIN1_PA1
#ifdef CONFIG_MACH_RK3026_YK_k71_ACT8931
#define WAKE_PORT INVALID_GPIO
#else
#define WAKE_PORT RK30_PIN2_PB2
#endif
#elif defined(CONFIG_MACH_RK3026_86V_NOPMU) && defined(CONFIG_MACH_RK3026_86V_WIFI_ESP8089)
#define IRQ_PORT RK30_PIN1_PA1
#define WAKE_PORT RK30_PIN2_PB2
#elif defined(CONFIG_PMIC_AXP192)
#define IRQ_PORT RK30_PIN2_PB2
#define WAKE_PORT INVALID_GPIO
#elif defined(CONFIG_INCAR_PNLVCOM_ADJUST)
#define IRQ_PORT RK30_PIN1_PB0
#define WAKE_PORT RK30_PIN2_PB2
#elif defined(CONFIG_MACH_RK3026_86V_NOPMU)
#define IRQ_PORT RK30_PIN1_PA1
#define WAKE_PORT INVALID_GPIO
#else
#define IRQ_PORT RK30_PIN1_PB0
#define WAKE_PORT RK30_PIN0_PD3
#endif
#endif
#else
static int g_wake_pin;
#endif
#define GSL_DATA_REG 0x80
#define GSL_STATUS_REG 0xe0
#define GSL_PAGE_REG 0xf0
#define TPD_PROC_DEBUG
#ifdef TPD_PROC_DEBUG
#include <linux/proc_fs.h>
#include <linux/uaccess.h>
#include <linux/seq_file.h>
#define GSL_CONFIG_PROC_FILE "gsl_config"
#define CONFIG_LEN 31
static char gsl_read[CONFIG_LEN];
static u8 gsl_data_proc[8] = {0};
static u8 gsl_proc_flag;
#if defined(CONFIG_TOUCHSCREEN_GSL1680_7INCH_1024x600_K71_NEW)
static int revert_xy = 1;
static int revert_x;
static int revert_y;
#elif defined(CONFIG_GSLX680_9INCH_800X480_NEW)
static int revert_xy = 1;
static int revert_x;
static int revert_y;
#elif defined(CONFIG_TOUCHSCREEN_GSL1680_7INCH_800x480_YOUCHU_NEW)
static int revert_xy = 1;
static int revert_x = 1;
static int revert_y = 1;
#elif defined(CONFIG_BOARD_TH71_3128_V1)
static int revert_xy = 1;
static int revert_x = 1;
static int revert_y = 1;
#else
static int revert_xy = 1;
static int revert_x;
static int revert_y = 1;
#endif
#endif
#define PRESS_MAX 255
#define MAX_FINGERS 5
#define MAX_CONTACTS 10
#define DMA_TRANS_LEN 0x20
#ifdef GSL_MONITOR
static struct delayed_work gsl_monitor_work;
static struct workqueue_struct *gsl_monitor_workqueue;
static char int_1st[4] = {0};
static char int_2nd[4] = {0};
static char dac_counter;
static char b0_counter;
static char i2c_lock_flag;
#endif
static struct i2c_client *gsl_client;
#ifdef HAVE_TOUCH_KEY
static u16 key;
static int key_state_flag;
struct key_data {
u16 key;
u16 x_min;
u16 x_max;
u16 y_min;
u16 y_max;
};
const u16 key_array[] = {
KEY_BACK,
KEY_HOME,
KEY_MENU,
KEY_SEARCH,
};
#define MAX_KEY_NUM (sizeof(key_array) / sizeof(key_array[0]))
struct key_data gsl_key_data[MAX_KEY_NUM] = {
{KEY_BACK, 2048, 2048, 2048, 2048},
{KEY_HOME, 2048, 2048, 2048, 2048},
{KEY_MENU, 2048, 2048, 2048, 2048},
{KEY_SEARCH, 2048, 2048, 2048, 2048},
};
#endif
struct gsl_ts_data {
u8 x_index;
u8 y_index;
u8 z_index;
u8 id_index;
u8 touch_index;
u8 data_reg;
u8 status_reg;
u8 data_size;
u8 touch_bytes;
u8 update_data;
u8 touch_meta_data;
u8 finger_size;
};
static struct gsl_ts_data devices[] = {
{
.x_index = 6,
.y_index = 4,
.z_index = 5,
.id_index = 7,
.data_reg = GSL_DATA_REG,
.status_reg = GSL_STATUS_REG,
.update_data = 0x4,
.touch_bytes = 4,
.touch_meta_data = 4,
.finger_size = 70,
},
};
struct gsl_ts {
struct i2c_client *client;
struct input_dev *input;
struct work_struct work;
struct workqueue_struct *wq;
struct gsl_ts_data *dd;
u8 *touch_data;
u8 device_id;
int irq;
int irq_pin;
int wake_pin;
struct tp_device tp;
#if defined(CONFIG_HAS_EARLYSUSPEND)
struct early_suspend early_suspend;
#endif
};
#ifdef GSL_DEBUG
#define print_info(fmt, args...) \
do { \
pr_info(fmt, ##args); \
} while (0)
#else
#define print_info(fmt, args...)
#endif
static u32 id_sign[MAX_CONTACTS + 1] = {0};
static u8 id_state_flag[MAX_CONTACTS + 1] = {0};
static u8 id_state_old_flag[MAX_CONTACTS + 1] = {0};
static u16 x_old[MAX_CONTACTS + 1] = {0};
static u16 y_old[MAX_CONTACTS + 1] = {0};
static u16 x_new;
static u16 y_new;
static int gslX680_shutdown_low(void)
{
if (g_wake_pin != 0) {
gpio_direction_output(g_wake_pin, 0);
gpio_set_value(g_wake_pin, 0);
}
return 0;
}
static int gslX680_shutdown_high(void)
{
if (g_wake_pin != 0) {
gpio_direction_output(g_wake_pin, 0);
gpio_set_value(g_wake_pin, 1);
}
return 0;
}
static inline u16 join_bytes(u8 a, u8 b)
{
u16 ab = 0;
ab = ab | a;
ab = ab << 8 | b;
return ab;
}
static u32 gsl_write_interface(struct i2c_client *client, const u8 reg, u8 *buf, u32 num)
{
struct i2c_msg xfer_msg[1];
buf[0] = reg;
xfer_msg[0].addr = client->addr;
xfer_msg[0].len = num + 1;
xfer_msg[0].flags = client->flags & I2C_M_TEN;
xfer_msg[0].buf = buf;
return i2c_transfer(client->adapter, xfer_msg, 1) == 1 ? 0 : -EFAULT;
}
static int gsl_ts_write(struct i2c_client *client, u8 addr, u8 *pdata, int datalen)
{
int ret = 0;
u8 tmp_buf[128];
unsigned int bytelen = 0;
if (datalen > 125) {
pr_info("%s too big datalen = %d!\n", __func__, datalen);
return -1;
}
tmp_buf[0] = addr;
bytelen++;
if (datalen != 0 && pdata != NULL) {
memcpy(&tmp_buf[bytelen], pdata, datalen);
bytelen += datalen;
}
ret = i2c_master_send(client, tmp_buf, bytelen);
return ret;
}
static int gsl_ts_read(struct i2c_client *client, u8 addr, u8 *pdata, unsigned int datalen)
{
int ret = 0;
if (datalen > 126) {
pr_info("%s too big datalen = %d!\n", __func__, datalen);
return -1;
}
ret = gsl_ts_write(client, addr, NULL, 0);
if (ret < 0) {
pr_info("%s set data address fail!\n", __func__);
return ret;
}
return i2c_master_recv(client, pdata, datalen);
}
static __inline__ void fw2buf(u8 *buf, const u32 *fw)
{
u32 *u32_buf = (int *)buf;
*u32_buf = *fw;
}
static void gsl_load_fw(struct i2c_client *client)
{
u8 buf[DMA_TRANS_LEN * 4 + 1] = {0};
u8 send_flag = 1;
u8 *cur = buf + 1;
u32 source_line = 0;
u32 source_len;
struct fw_data *ptr_fw;
pr_info("=============gsl_load_fw start==============\n");
ptr_fw = GSLX680_FW;
source_len = ARRAY_SIZE(GSLX680_FW);
for (source_line = 0; source_line < source_len; source_line++) {
/* init page trans, set the page val */
if (ptr_fw[source_line].offset == GSL_PAGE_REG) {
fw2buf(cur, &ptr_fw[source_line].val);
gsl_write_interface(client, GSL_PAGE_REG, buf, 4);
send_flag = 1;
} else {
if (send_flag % (DMA_TRANS_LEN < 0x20 ? DMA_TRANS_LEN : 0x20) == 1)
buf[0] = (u8)ptr_fw[source_line].offset;
fw2buf(cur, &ptr_fw[source_line].val);
cur += 4;
if (send_flag % (DMA_TRANS_LEN < 0x20 ? DMA_TRANS_LEN : 0x20) == 0) {
gsl_write_interface(client, buf[0], buf, cur - buf - 1);
cur = buf + 1;
}
send_flag++;
}
}
pr_info("=============gsl_load_fw end==============\n");
}
static int test_i2c(struct i2c_client *client)
{
u8 read_buf = 0;
u8 write_buf = 0x12;
int ret, rc = 1;
ret = gsl_ts_read(client, 0xf0, &read_buf, sizeof(read_buf));
if (ret < 0)
rc--;
else
pr_info("I read reg 0xf0 is %x\n", read_buf);
msleep(2);
ret = gsl_ts_write(client, 0xf0, &write_buf, sizeof(write_buf));
if (ret >= 0)
pr_info("I write reg 0xf0 0x12\n");
msleep(2);
ret = gsl_ts_read(client, 0xf0, &read_buf, sizeof(read_buf));
if (ret < 0)
rc--;
else
pr_info("I read reg 0xf0 is 0x%x\n", read_buf);
return rc;
}
static void startup_chip(struct i2c_client *client)
{
u8 tmp = 0x00;
#ifdef GSL_NOID_VERSION
gsl_DataInit(gsl_config_data_id);
#endif
gsl_ts_write(client, 0xe0, &tmp, 1);
msleep(10);
}
static void reset_chip(struct i2c_client *client)
{
u8 tmp = 0x88;
u8 buf[4] = {0x00};
gsl_ts_write(client, 0xe0, &tmp, sizeof(tmp));
msleep(20);
tmp = 0x04;
gsl_ts_write(client, 0xe4, &tmp, sizeof(tmp));
msleep(10);
gsl_ts_write(client, 0xbc, buf, sizeof(buf));
msleep(10);
}
static void clr_reg(struct i2c_client *client)
{
u8 write_buf[4] = {0};
write_buf[0] = 0x88;
gsl_ts_write(client, 0xe0, &write_buf[0], 1);
msleep(20);
write_buf[0] = 0x03;
gsl_ts_write(client, 0x80, &write_buf[0], 1);
msleep(5);
write_buf[0] = 0x04;
gsl_ts_write(client, 0xe4, &write_buf[0], 1);
msleep(5);
write_buf[0] = 0x00;
gsl_ts_write(client, 0xe0, &write_buf[0], 1);
msleep(20);
}
static void init_chip(struct i2c_client *client)
{
int rc;
int i;
gslX680_shutdown_low();
msleep(20);
gslX680_shutdown_high();
msleep(20);
for (i = 0; i < 10; i++) {
rc = test_i2c(client);
if (rc >= 0)
break;
}
if (rc < 0) {
pr_info("------gslX680 test_i2c error------\n");
return;
}
clr_reg(client);
reset_chip(client);
gsl_load_fw(client);
startup_chip(client);
reset_chip(client);
startup_chip(client);
}
static void check_mem_data(struct i2c_client *client)
{
u8 read_buf[4] = {0};
msleep(30);
gsl_ts_read(client, 0xb0, read_buf, sizeof(read_buf));
if (read_buf[3] != 0x5a || read_buf[2] != 0x5a || read_buf[1] != 0x5a || read_buf[0] != 0x5a) {
pr_info("#########check mem read 0xb0 = %x %x %x %x #########\n", read_buf[3], read_buf[2], read_buf[1], read_buf[0]);
init_chip(client);
}
}
#ifdef TPD_PROC_DEBUG
static int char_to_int(char ch)
{
if (ch >= '0' && ch <= '9')
return (ch - '0');
else
return (ch - 'a' + 10);
}
static int gsl_config_read_proc(struct seq_file *m, void *v)
{
char temp_data[5] = {0};
unsigned int tmp = 0;
if ('v' == gsl_read[0] && 's' == gsl_read[1]) {
#ifdef GSL_NOID_VERSION
tmp = gsl_version_id();
#else
tmp = 0x20121215;
#endif
seq_printf(m, "version:%x\n", tmp);
} else if ('r' == gsl_read[0] && 'e' == gsl_read[1]) {
if ('i' == gsl_read[3]) {
#ifdef GSL_NOID_VERSION
tmp = (gsl_data_proc[5] << 8) | gsl_data_proc[4];
seq_printf(m, "gsl_config_data_id[%d] = ", tmp);
if (tmp >= 0 && tmp < ARRAY_SIZE(gsl_config_data_id))
seq_printf(m, "%d\n", gsl_config_data_id[tmp]);
#endif
} else {
gsl_ts_write(gsl_client, 0Xf0, &gsl_data_proc[4], 4);
if (gsl_data_proc[0] < 0x80)
gsl_ts_read(gsl_client, gsl_data_proc[0], temp_data, 4);
gsl_ts_read(gsl_client, gsl_data_proc[0], temp_data, 4);
seq_printf(m, "offset : {0x%02x,0x", gsl_data_proc[0]);
seq_printf(m, "%02x", temp_data[3]);
seq_printf(m, "%02x", temp_data[2]);
seq_printf(m, "%02x", temp_data[1]);
seq_printf(m, "%02x};\n", temp_data[0]);
}
}
return 0;
}
static ssize_t gsl_config_write_proc(struct file *file, const char __user *buffer, size_t count, loff_t *data)
{
u8 buf[8] = {0};
char temp_buf[CONFIG_LEN];
char *path_buf;
int tmp = 0;
int tmp1 = 0;
print_info("[tp-gsl][%s] \n", __func__);
if (count > 512) {
print_info("size not match [%d:%ld]\n", CONFIG_LEN, count);
return -EFAULT;
}
path_buf = kzalloc(count, GFP_KERNEL);
if (!path_buf) {
pr_info("alloc path_buf memory error \n");
return -ENOMEM;
}
if (copy_from_user(path_buf, buffer, count)) {
print_info("copy from user fail\n");
goto exit_write_proc_out;
}
memcpy(temp_buf, path_buf, (count < CONFIG_LEN ? count : CONFIG_LEN));
print_info("[tp-gsl][%s][%s]\n", __func__, temp_buf);
buf[3] = char_to_int(temp_buf[14]) << 4 | char_to_int(temp_buf[15]);
buf[2] = char_to_int(temp_buf[16]) << 4 | char_to_int(temp_buf[17]);
buf[1] = char_to_int(temp_buf[18]) << 4 | char_to_int(temp_buf[19]);
buf[0] = char_to_int(temp_buf[20]) << 4 | char_to_int(temp_buf[21]);
buf[7] = char_to_int(temp_buf[5]) << 4 | char_to_int(temp_buf[6]);
buf[6] = char_to_int(temp_buf[7]) << 4 | char_to_int(temp_buf[8]);
buf[5] = char_to_int(temp_buf[9]) << 4 | char_to_int(temp_buf[10]);
buf[4] = char_to_int(temp_buf[11]) << 4 | char_to_int(temp_buf[12]);
if ('v' == temp_buf[0] && 's' == temp_buf[1]) {
memcpy(gsl_read, temp_buf, 4);
pr_info("gsl version\n");
} else if ('s' == temp_buf[0] && 't' == temp_buf[1]) {
#ifdef GSL_MONITOR
cancel_delayed_work_sync(&gsl_monitor_work);
#endif
gsl_proc_flag = 1;
reset_chip(gsl_client);
} else if ('e' == temp_buf[0] && 'n' == temp_buf[1]) {
msleep(20);
reset_chip(gsl_client);
startup_chip(gsl_client);
gsl_proc_flag = 0;
} else if ('r' == temp_buf[0] && 'e' == temp_buf[1]) {
memcpy(gsl_read, temp_buf, 4);
memcpy(gsl_data_proc, buf, 8);
} else if ('w' == temp_buf[0] && 'r' == temp_buf[1]) {
gsl_ts_write(gsl_client, buf[4], buf, 4);
}
#ifdef GSL_NOID_VERSION
else if ('i' == temp_buf[0] && 'd' == temp_buf[1]) {
tmp1 = (buf[7] << 24) | (buf[6] << 16) | (buf[5] << 8) | buf[4];
tmp = (buf[3] << 24) | (buf[2] << 16) | (buf[1] << 8) | buf[0];
if (tmp1 >= 0 && tmp1 < ARRAY_SIZE(gsl_config_data_id))
gsl_config_data_id[tmp1] = tmp;
}
#endif
exit_write_proc_out:
kfree(path_buf);
return count;
}
static int gsl_server_list_open(struct inode *inode, struct file *file)
{
return single_open(file, gsl_config_read_proc, NULL);
}
static const struct file_operations gsl_seq_fops = {
.open = gsl_server_list_open,
.read = seq_read,
.release = single_release,
.write = gsl_config_write_proc,
.owner = THIS_MODULE,
};
#endif
#ifdef FILTER_POINT
static void filter_point(u16 x, u16 y, u8 id)
{
u16 x_err = 0;
u16 y_err = 0;
u16 filter_step_x = 0, filter_step_y = 0;
id_sign[id] = id_sign[id] + 1;
if (id_sign[id] == 1) {
x_old[id] = x;
y_old[id] = y;
}
x_err = x > x_old[id] ? (x - x_old[id]) : (x_old[id] - x);
y_err = y > y_old[id] ? (y - y_old[id]) : (y_old[id] - y);
if ((x_err > FILTER_MAX && y_err > FILTER_MAX / 3) || (x_err > FILTER_MAX / 3 && y_err > FILTER_MAX)) {
filter_step_x = x_err;
filter_step_y = y_err;
} else {
if (x_err > FILTER_MAX)
filter_step_x = x_err;
if (y_err > FILTER_MAX)
filter_step_y = y_err;
}
if (x_err <= 2 * FILTER_MAX && y_err <= 2 * FILTER_MAX) {
filter_step_x >>= 2;
filter_step_y >>= 2;
} else if (x_err <= 3 * FILTER_MAX && y_err <= 3 * FILTER_MAX) {
filter_step_x >>= 1;
filter_step_y >>= 1;
} else if (x_err <= 4 * FILTER_MAX && y_err <= 4 * FILTER_MAX) {
filter_step_x = filter_step_x * 3 / 4;
filter_step_y = filter_step_y * 3 / 4;
}
x_new = x > x_old[id] ? (x_old[id] + filter_step_x) : (x_old[id] - filter_step_x);
y_new = y > y_old[id] ? (y_old[id] + filter_step_y) : (y_old[id] - filter_step_y);
x_old[id] = x_new;
y_old[id] = y_new;
}
#else
static void record_point(u16 x, u16 y, u8 id)
{
u16 x_err = 0;
u16 y_err = 0;
id_sign[id] = id_sign[id] + 1;
if (id_sign[id] == 1) {
x_old[id] = x;
y_old[id] = y;
}
x = (x_old[id] + x) / 2;
y = (y_old[id] + y) / 2;
if (x > x_old[id])
x_err = x - x_old[id];
else
x_err = x_old[id] - x;
if (y > y_old[id])
y_err = y - y_old[id];
else
y_err = y_old[id] - y;
if ((x_err > 3 && y_err > 1) || (x_err > 1 && y_err > 3)) {
x_new = x;
x_old[id] = x;
y_new = y;
y_old[id] = y;
} else {
if (x_err > 3) {
x_new = x;
x_old[id] = x;
} else {
x_new = x_old[id];
}
if (y_err > 3) {
y_new = y;
y_old[id] = y;
} else {
y_new = y_old[id];
}
}
if (id_sign[id] == 1) {
x_new = x_old[id];
y_new = y_old[id];
}
}
#endif
#ifdef HAVE_TOUCH_KEY
static void report_key(struct gsl_ts *ts, u16 x, u16 y)
{
u16 i = 0;
for (i = 0; i < MAX_KEY_NUM; i++) {
if ((gsl_key_data[i].x_min < x) && (x < gsl_key_data[i].x_max) && (gsl_key_data[i].y_min < y) && (y < gsl_key_data[i].y_max)) {
key = gsl_key_data[i].key;
input_report_key(ts->input, key, 1);
input_sync(ts->input);
key_state_flag = 1;
break;
}
}
}
#endif
static void report_data(struct gsl_ts *ts, u16 x, u16 y, u8 pressure, u8 id)
{
if (revert_xy)
swap(x, y);
print_info("#####id=%d,x=%d,y=%d######\n", id, x, y);
if (x > SCREEN_MAX_X || y > SCREEN_MAX_Y) {
#ifdef HAVE_TOUCH_KEY
report_key(ts, x, y);
#endif
return;
}
if (revert_x)
x = SCREEN_MAX_X - x - 1;
if (revert_y)
y = SCREEN_MAX_Y - y - 1;
#ifdef REPORT_DATA_ANDROID_4_0
input_mt_slot(ts->input, id);
input_report_abs(ts->input, ABS_MT_TRACKING_ID, id);
input_report_abs(ts->input, ABS_MT_TOUCH_MAJOR, pressure);
input_report_abs(ts->input, ABS_MT_POSITION_X, x);
input_report_abs(ts->input, ABS_MT_POSITION_Y, y);
input_report_abs(ts->input, ABS_MT_WIDTH_MAJOR, 1);
#else
input_report_abs(ts->input, ABS_MT_TRACKING_ID, id);
input_report_abs(ts->input, ABS_MT_TOUCH_MAJOR, pressure);
input_report_abs(ts->input, ABS_MT_POSITION_X, x);
input_report_abs(ts->input, ABS_MT_POSITION_Y, y);
input_report_abs(ts->input, ABS_MT_WIDTH_MAJOR, 1);
input_mt_sync(ts->input);
#endif
}
static void gslX680_ts_worker(struct work_struct *work)
{
int rc, i;
u8 id, touches;
u16 x, y;
#ifdef GSL_NOID_VERSION
unsigned int tmp1;
u8 buf[4] = {0};
struct gsl_touch_info cinfo;
#endif
struct gsl_ts *ts = container_of(work, struct gsl_ts, work);
print_info("=====gslX680_ts_worker=====\n");
#ifdef TPD_PROC_DEBUG
if (gsl_proc_flag == 1)
goto schedule;
#endif
#ifdef GSL_MONITOR
if (i2c_lock_flag != 0)
goto i2c_lock_schedule;
else
i2c_lock_flag = 1;
#endif
rc = gsl_ts_read(ts->client, 0x80, ts->touch_data, ts->dd->data_size);
if (rc < 0) {
dev_err(&ts->client->dev, "read failed\n");
reset_chip(ts->client);
startup_chip(ts->client);
goto schedule;
}
touches = ts->touch_data[ts->dd->touch_index];
print_info("-----touches: %d -----\n", touches);
#ifdef GSL_NOID_VERSION
cinfo.finger_num = touches;
print_info("tp-gsl finger_num = %d\n", cinfo.finger_num);
for (i = 0; i < (touches < MAX_CONTACTS ? touches : MAX_CONTACTS); i++) {
cinfo.x[i] = join_bytes((ts->touch_data[ts->dd->x_index + 4 * i + 1] & 0xf),
ts->touch_data[ts->dd->x_index + 4 * i]);
cinfo.y[i] = join_bytes(ts->touch_data[ts->dd->y_index + 4 * i + 1],
ts->touch_data[ts->dd->y_index + 4 * i]);
print_info("tp-gsl x = %d y = %d \n", cinfo.x[i], cinfo.y[i]);
}
cinfo.finger_num = (ts->touch_data[3] << 24) | (ts->touch_data[2] << 16)
| (ts->touch_data[1] << 8) | (ts->touch_data[0]);
gsl_alg_id_main(&cinfo);
tmp1 = gsl_mask_tiaoping();
print_info("[tp-gsl] tmp1=%x\n", tmp1);
if (tmp1 > 0 && tmp1 < 0xffffffff) {
buf[0] = 0xa;
buf[1] = 0;
buf[2] = 0;
buf[3] = 0;
gsl_ts_write(ts->client, 0xf0, buf, 4);
buf[0] = (u8)(tmp1 & 0xff);
buf[1] = (u8)((tmp1 >> 8) & 0xff);
buf[2] = (u8)((tmp1 >> 16) & 0xff);
buf[3] = (u8)((tmp1 >> 24) & 0xff);
print_info("tmp1=%08x,buf[0]=%02x,buf[1]=%02x,buf[2]=%02x,buf[3]=%02x\n",
tmp1, buf[0], buf[1], buf[2], buf[3]);
gsl_ts_write(ts->client, 0x8, buf, 4);
}
touches = cinfo.finger_num;
#endif
for (i = 1; i <= MAX_CONTACTS; i++) {
if (touches == 0)
id_sign[i] = 0;
id_state_flag[i] = 0;
}
for (i = 0; i < (touches > MAX_FINGERS ? MAX_FINGERS : touches); i++) {
#ifdef GSL_NOID_VERSION
id = cinfo.id[i];
x = cinfo.x[i];
y = cinfo.y[i];
#else
x = join_bytes((ts->touch_data[ts->dd->x_index + 4 * i + 1] & 0xf),
ts->touch_data[ts->dd->x_index + 4 * i]);
y = join_bytes(ts->touch_data[ts->dd->y_index + 4 * i + 1],
ts->touch_data[ts->dd->y_index + 4 * i]);
id = ts->touch_data[ts->dd->id_index + 4 * i] >> 4;
#endif
if (id >= 1 && id <= MAX_CONTACTS) {
#ifdef FILTER_POINT
filter_point(x, y, id);
#else
record_point(x, y, id);
#endif
report_data(ts, x_new, y_new, 10, id);
id_state_flag[id] = 1;
}
}
for (i = 1; i <= MAX_CONTACTS; i++) {
if ((touches == 0) || ((id_state_old_flag[i] != 0) && (id_state_flag[i] == 0))) {
#ifdef REPORT_DATA_ANDROID_4_0
input_mt_slot(ts->input, i);
input_report_abs(ts->input, ABS_MT_TRACKING_ID, -1);
input_mt_report_slot_state(ts->input, MT_TOOL_FINGER, false);
#endif
id_sign[i] = 0;
}
id_state_old_flag[i] = id_state_flag[i];
}
#ifndef REPORT_DATA_ANDROID_4_0
if (touches == 0) {
input_mt_sync(ts->input);
#ifdef HAVE_TOUCH_KEY
if (key_state_flag) {
input_report_key(ts->input, key, 0);
input_sync(ts->input);
key_state_flag = 0;
}
#endif
}
#endif
input_sync(ts->input);
schedule:
#ifdef GSL_MONITOR
i2c_lock_flag = 0;
i2c_lock_schedule:
#endif
enable_irq(ts->irq);
}
#ifdef GSL_MONITOR
static void gsl_monitor_worker(void)
{
char write_buf[4] = {0};
char read_buf[4] = {0};
print_info("----------------gsl_monitor_worker-----------------\n");
if (i2c_lock_flag != 0)
goto queue_monitor_work;
else
i2c_lock_flag = 1;
gsl_ts_read(gsl_client, 0xb0, read_buf, 4);
if (read_buf[3] != 0x5a || read_buf[2] != 0x5a || read_buf[1] != 0x5a || read_buf[0] != 0x5a)
b0_counter++;
else
b0_counter = 0;
if (b0_counter > 1) {
pr_info("======read 0xb0: %x %x %x %x ======\n", read_buf[3], read_buf[2], read_buf[1], read_buf[0]);
init_chip(gsl_client);
b0_counter = 0;
}
gsl_ts_read(gsl_client, 0xb4, read_buf, 4);
int_2nd[3] = int_1st[3];
int_2nd[2] = int_1st[2];
int_2nd[1] = int_1st[1];
int_2nd[0] = int_1st[0];
int_1st[3] = read_buf[3];
int_1st[2] = read_buf[2];
int_1st[1] = read_buf[1];
int_1st[0] = read_buf[0];
if (int_1st[3] == int_2nd[3] && int_1st[2] == int_2nd[2] && int_1st[1] == int_2nd[1] && int_1st[0] == int_2nd[0]) {
pr_info("======int_1st: %x %x %x %x , int_2nd: %x %x %x %x ======\n", int_1st[3], int_1st[2], int_1st[1], int_1st[0], int_2nd[3], int_2nd[2], int_2nd[1], int_2nd[0]);
init_chip(gsl_client);
}
write_buf[3] = 0x01;
write_buf[2] = 0xfe;
write_buf[1] = 0x10;
write_buf[0] = 0x00;
gsl_ts_write(gsl_client, 0xf0, write_buf, 4);
gsl_ts_read(gsl_client, 0x10, read_buf, 4);
gsl_ts_read(gsl_client, 0x10, read_buf, 4);
if (read_buf[3] < 10 && read_buf[2] < 10 && read_buf[1] < 10 && read_buf[0] < 10)
dac_counter++;
else
dac_counter = 0;
if (dac_counter > 1) {
pr_info("======read DAC1_0: %x %x %x %x ======\n", read_buf[3], read_buf[2], read_buf[1], read_buf[0]);
init_chip(gsl_client);
dac_counter = 0;
}
i2c_lock_flag = 0;
queue_monitor_work:
queue_delayed_work(gsl_monitor_workqueue, &gsl_monitor_work, 100);
}
#endif
static irqreturn_t gsl_ts_irq(int irq, void *dev_id)
{
struct gsl_ts *ts = dev_id;
print_info("========gslX680 Interrupt=========\n");
disable_irq_nosync(ts->irq);
if (!work_pending(&ts->work))
queue_work(ts->wq, &ts->work);
return IRQ_HANDLED;
}
static int gslX680_ts_init(struct i2c_client *client, struct gsl_ts *ts)
{
struct input_dev *input_device;
int rc = 0;
pr_info("[GSLX680] Enter %s\n", __func__);
ts->dd = &devices[ts->device_id];
if (ts->device_id == 0) {
ts->dd->data_size = MAX_FINGERS * ts->dd->touch_bytes + ts->dd->touch_meta_data;
ts->dd->touch_index = 0;
}
ts->touch_data = devm_kzalloc(&client->dev, ts->dd->data_size, GFP_KERNEL);
if (!ts->touch_data) {
pr_err("%s: Unable to allocate memory\n", __func__);
return -ENOMEM;
}
input_device = devm_input_allocate_device(&client->dev);
if (!input_device) {
rc = -ENOMEM;
goto error_alloc_dev;
}
ts->input = input_device;
input_device->name = GSLX680_I2C_NAME;
input_device->id.bustype = BUS_I2C;
input_device->dev.parent = &client->dev;
input_set_drvdata(input_device, ts);
#ifdef REPORT_DATA_ANDROID_4_0
__set_bit(EV_ABS, input_device->evbit);
__set_bit(EV_KEY, input_device->evbit);
__set_bit(EV_REP, input_device->evbit);
__set_bit(INPUT_PROP_DIRECT, input_device->propbit);
input_mt_init_slots(input_device, (MAX_CONTACTS + 1), 0);
#else
input_set_abs_params(input_device, ABS_MT_TRACKING_ID, 0, (MAX_CONTACTS + 1), 0, 0);
set_bit(EV_ABS, input_device->evbit);
set_bit(EV_KEY, input_device->evbit);
__set_bit(INPUT_PROP_DIRECT, input_device->propbit);
input_device->keybit[BIT_WORD(BTN_TOUCH)] = BIT_MASK(BTN_TOUCH);
#endif
#ifdef HAVE_TOUCH_KEY
input_device->evbit[0] = BIT_MASK(EV_KEY);
for (i = 0; i < MAX_KEY_NUM; i++)
set_bit(key_array[i], input_device->keybit);
#endif
set_bit(ABS_MT_POSITION_X, input_device->absbit);
set_bit(ABS_MT_POSITION_Y, input_device->absbit);
set_bit(ABS_MT_TOUCH_MAJOR, input_device->absbit);
set_bit(ABS_MT_WIDTH_MAJOR, input_device->absbit);
input_set_abs_params(input_device, ABS_MT_POSITION_X, 0, SCREEN_MAX_X, 0, 0);
input_set_abs_params(input_device, ABS_MT_POSITION_Y, 0, SCREEN_MAX_Y, 0, 0);
input_set_abs_params(input_device, ABS_MT_TOUCH_MAJOR, 0, PRESS_MAX, 0, 0);
input_set_abs_params(input_device, ABS_MT_WIDTH_MAJOR, 0, 200, 0, 0);
ts->wq = create_singlethread_workqueue("kworkqueue_ts");
if (!ts->wq) {
dev_err(&client->dev, "Could not create workqueue\n");
goto error_wq_create;
}
flush_workqueue(ts->wq);
INIT_WORK(&ts->work, gslX680_ts_worker);
rc = input_register_device(input_device);
if (rc)
goto error_unreg_device;
return 0;
error_unreg_device:
destroy_workqueue(ts->wq);
error_wq_create:
error_alloc_dev:
return rc;
}
static int gsl_ts_suspend(struct device *dev)
{
struct gsl_ts *ts = dev_get_drvdata(dev);
int i;
pr_info("I'am in gsl_ts_suspend() start\n");
#ifdef GSL_MONITOR
pr_info("gsl_ts_suspend () : cancel gsl_monitor_work\n");
cancel_delayed_work_sync(&gsl_monitor_work);
#endif
disable_irq_nosync(ts->irq);
gslX680_shutdown_low();
#ifdef SLEEP_CLEAR_POINT
msleep(10);
#ifdef REPORT_DATA_ANDROID_4_0
for (i = 1; i <= MAX_CONTACTS; i++) {
input_mt_slot(ts->input, i);
input_report_abs(ts->input, ABS_MT_TRACKING_ID, -1);
input_mt_report_slot_state(ts->input, MT_TOOL_FINGER, false);
}
#else
input_mt_sync(ts->input);
#endif
input_sync(ts->input);
msleep(10);
report_data(ts, 1, 1, 10, 1);
input_sync(ts->input);
#endif
return 0;
}
static int gsl_ts_resume(struct device *dev)
{
struct gsl_ts *ts = dev_get_drvdata(dev);
int i;
pr_info("I'am in gsl_ts_resume() start\n");
gslX680_shutdown_high();
msleep(20);
reset_chip(ts->client);
startup_chip(ts->client);
check_mem_data(ts->client);
#ifdef SLEEP_CLEAR_POINT
#ifdef REPORT_DATA_ANDROID_4_0
for (i = 1; i <= MAX_CONTACTS; i++) {
input_mt_slot(ts->input, i);
input_report_abs(ts->input, ABS_MT_TRACKING_ID, -1);
input_mt_report_slot_state(ts->input, MT_TOOL_FINGER, false);
}
#else
input_mt_sync(ts->input);
#endif
input_sync(ts->input);
#endif
#ifdef GSL_MONITOR
pr_info("gsl_ts_resume () : queue gsl_monitor_work\n");
queue_delayed_work(gsl_monitor_workqueue, &gsl_monitor_work, 300);
#endif
pr_info("gsl_ts_resume () end\n");
enable_irq(ts->irq);
return 0;
}
#if 1
static int gsl_ts_early_suspend(struct tp_device *tp_d)
{
struct gsl_ts *ts = container_of(tp_d, struct gsl_ts, tp);
pr_info("[GSLX680] Enter %s\n", __func__);
return gsl_ts_suspend(&ts->client->dev);
}
static int gsl_ts_late_resume(struct tp_device *tp_d)
{
struct gsl_ts *ts = container_of(tp_d, struct gsl_ts, tp);
pr_info("[GSLX680] Enter %s\n", __func__);
return gsl_ts_resume(&ts->client->dev);
}
#endif
static int gsl_ts_probe(struct i2c_client *client, const struct i2c_device_id *id)
{
struct gsl_ts *ts;
int rc;
struct device_node *np = client->dev.of_node;
enum of_gpio_flags wake_flags;
unsigned long irq_flags;
pr_info("GSLX680 Enter %s\n", __func__);
if (!i2c_check_functionality(client->adapter, I2C_FUNC_I2C)) {
dev_err(&client->dev, "I2C functionality not supported\n");
return -ENODEV;
}
ts = devm_kzalloc(&client->dev, sizeof(*ts), GFP_KERNEL);
if (!ts)
return -ENOMEM;
pr_info("==kzalloc success=\n");
ts->client = client;
i2c_set_clientdata(client, ts);
ts->device_id = id->driver_data;
ts->irq_pin = of_get_named_gpio_flags(np, "irq-gpio", 0, (enum of_gpio_flags *)&irq_flags);
ts->wake_pin = of_get_named_gpio_flags(np, "wake-gpio", 0, &wake_flags);
if (gpio_is_valid(ts->wake_pin)) {
rc = devm_gpio_request_one(&client->dev, ts->wake_pin, (wake_flags & OF_GPIO_ACTIVE_LOW) ? GPIOF_OUT_INIT_LOW : GPIOF_OUT_INIT_HIGH, "gslX680 wake pin");
if (rc != 0) {
dev_err(&client->dev, "gslX680 wake pin error\n");
return -EIO;
}
g_wake_pin = ts->wake_pin;
} else {
dev_info(&client->dev, "wake pin invalid\n");
}
if (gpio_is_valid(ts->irq_pin)) {
rc = devm_gpio_request_one(&client->dev, ts->irq_pin, (irq_flags & OF_GPIO_ACTIVE_LOW) ? GPIOF_OUT_INIT_LOW : GPIOF_OUT_INIT_HIGH, "gslX680 irq pin");
if (rc != 0) {
dev_err(&client->dev, "gslX680 irq pin error\n");
return -EIO;
}
} else {
dev_info(&client->dev, "irq pin invalid\n");
}
rc = gslX680_ts_init(client, ts);
if (rc < 0) {
dev_err(&client->dev, "GSLX680 init failed\n");
goto error_mutex_destroy;
}
gsl_client = client;
init_chip(ts->client);
check_mem_data(ts->client);
ts->irq = gpio_to_irq(ts->irq_pin);
if (ts->irq) {
rc = devm_request_irq(&client->dev, ts->irq, gsl_ts_irq, IRQF_TRIGGER_RISING, client->name, ts);
if (rc != 0) {
pr_info("Cannot allocate ts INT!ERRNO:%d\n", rc);
goto error_req_irq_fail;
}
} else {
pr_info("gsl x680 irq req fail\n");
goto error_req_irq_fail;
}
/* create debug attribute */
ts->tp.tp_resume = gsl_ts_late_resume;
ts->tp.tp_suspend = gsl_ts_early_suspend;
tp_register_fb(&ts->tp);
#ifdef CONFIG_HAS_EARLYSUSPEND
ts->early_suspend.level = EARLY_SUSPEND_LEVEL_BLANK_SCREEN + 1;
ts->early_suspend.suspend = gsl_ts_early_suspend;
ts->early_suspend.resume = gsl_ts_late_resume;
register_early_suspend(&ts->early_suspend);
#endif
#ifdef GSL_MONITOR
pr_info("gsl_ts_probe () : queue gsl_monitor_workqueue\n");
INIT_DELAYED_WORK(&gsl_monitor_work, gsl_monitor_worker);
gsl_monitor_workqueue = create_singlethread_workqueue("gsl_monitor_workqueue");
queue_delayed_work(gsl_monitor_workqueue, &gsl_monitor_work, 1000);
#endif
#ifdef TPD_PROC_DEBUG
proc_create(GSL_CONFIG_PROC_FILE, 0644, NULL, &gsl_seq_fops);
gsl_proc_flag = 0;
#endif
pr_info("[GSLX680] End %s\n", __func__);
return 0;
error_req_irq_fail:
error_mutex_destroy:
return rc;
}
static int gsl_ts_remove(struct i2c_client *client)
{
struct gsl_ts *ts = i2c_get_clientdata(client);
pr_info("==gsl_ts_remove=\n");
#ifdef CONFIG_HAS_EARLYSUSPEND
unregister_early_suspend(&ts->early_suspend);
#endif
#ifdef GSL_MONITOR
cancel_delayed_work_sync(&gsl_monitor_work);
destroy_workqueue(gsl_monitor_workqueue);
#endif
device_init_wakeup(&client->dev, 0);
cancel_work_sync(&ts->work);
destroy_workqueue(ts->wq);
return 0;
}
static const struct i2c_device_id gsl_ts_id[] = {
{GSLX680_I2C_NAME, 0},
{}
};
MODULE_DEVICE_TABLE(i2c, gsl_ts_id);
#ifdef CONFIG_OF
static const struct of_device_id gslx680a_of_match[] = {
{.compatible = "gsl,gslx680a"},
{}
};
MODULE_DEVICE_TABLE(of, gslx680a_of_match);
#endif
static struct i2c_driver gsl_ts_driver = {
.driver = {
.of_match_table = of_match_ptr(gslx680a_of_match),
.name = GSLX680_I2C_NAME,
},
.probe = gsl_ts_probe,
.remove = gsl_ts_remove,
.id_table = gsl_ts_id,
};
module_i2c_driver(gsl_ts_driver);
MODULE_LICENSE("GPL");
MODULE_DESCRIPTION("GSLX680 touchscreen controller driver");
MODULE_AUTHOR("Guan Yuwei, guanyuwei@basewin.com");
MODULE_ALIAS("platform:gsl_ts");
Orange Pi5 kernel
Deprecated Linux kernel 5.10.110 for OrangePi 5/5B/5+ boards
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